Xiaomi Redmi K40 Pro vs. Asus ROG Phone 5s: A Deep Dive into Performance and Value
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🏆 Quick Verdict
For the average user prioritizing value and everyday performance, the Xiaomi Redmi K40 Pro offers a fantastic experience. However, the Asus ROG Phone 5s is the clear winner for dedicated mobile gamers who demand the highest frame rates, advanced cooling, and specialized gaming features.
| PHONES | ||
|---|---|---|
| Phone Names | Xiaomi Redmi K40 Pro | Asus ROG Phone 5s |
| Network | ||
|---|---|---|
| 2G bands | GSM 850 / 900 / 1800 / 1900 | GSM 850 / 900 / 1800 / 1900 |
| 3G bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | HSDPA 800 / 850 / 900 / 1700(AWS) / 1800 / 1900 / 2100 - Version 1 |
| 4G bands | 1, 2, 3, 4, 5, 7, 8, 12, 17, 18, 19, 20, 26, 28, 34, 38, 39, 40, 41, 42 | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 18, 19, 20, 25, 26, 28, 29, 30, 32, 34, 38, 39, 40, 41, 42, 48, 66, 71 - Version 1 |
| 5G bands | 1, 3, 28, 41, 77, 78 SA/NSA/Sub6 | 1, 2, 3, 5, 7, 8, 12, 20, 25, 28, 38, 40, 41, 66, 71, 77, 78, 79 SA/NSA - Version 1 |
| Speed | HSPA, LTE, 5G | HSPA 42.2/5.76 Mbps, LTE (7CA) Cat20 1400/150 Mbps, 5G 4 Gbps DL |
| Technology | GSM / CDMA / HSPA / CDMA2000 / LTE / 5G | GSM / HSPA / LTE / 5G |
| CDMA2000 1x | 2, 3, 5, 7, 12, 20, 25, 28, 38, 40, 66, 71, 77, 78, 79 SA/NSA - Version 4 | |
| Launch | ||
|---|---|---|
| Announced | 2021, February 25 | 2021, August 16 |
| Status | Available. Released 2021, March 04 | Available. Released 2021, August 26 |
| Body | ||
|---|---|---|
| Build | - | Glass front (Gorilla Glass Victus), glass back (Gorilla Glass 3), aluminum frame |
| Dimensions | 163.7 x 76.4 x 7.8 mm (6.44 x 3.01 x 0.31 in) | 172.8 x 77.3 x 9.9 mm (6.80 x 3.04 x 0.39 in) |
| SIM | Nano-SIM + Nano-SIM | Nano-SIM + Nano-SIM |
| Weight | 196 g (6.91 oz) | 238 g (8.40 oz) |
| IP53, dust and splash resistant | RGB light panel (on the back) Pressure sensitive zones (Gaming triggers) | |
| Display | ||
|---|---|---|
| Protection | Corning Gorilla Glass 5 | Corning Gorilla Glass Victus |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~395 ppi density) | 1080 x 2448 pixels (~395 ppi density) |
| Size | 6.67 inches, 107.4 cm2 (~85.9% screen-to-body ratio) | 6.78 inches, 109.5 cm2 (~82.0% screen-to-body ratio) |
| Type | Super AMOLED, 120Hz, HDR10+, 1300 nits (peak) | AMOLED, 1B colors, 144Hz, HDR10+, 800 nits (typ), 1200 nits (peak) |
| Platform | ||
|---|---|---|
| CPU | Octa-core (1x2.84 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) | Octa-core (1x2.99 GHz Cortex-X1 & 3x2.42 GHz Cortex-A78 & 4x1.80 GHz Cortex-A55) |
| Chipset | Qualcomm SM8350 Snapdragon 888 5G (5 nm) | Qualcomm SM8350 Snapdragon 888+ 5G (5 nm) |
| GPU | Adreno 660 | Adreno 660 |
| OS | Android 11, MIUI 12 | Android 11, upgradable to Android 13, ROG UI |
| Memory | ||
|---|---|---|
| Card slot | No | No |
| Internal | 128GB 6GB RAM, 128GB 8GB RAM, 256GB 8GB RAM, 256GB 12GB RAM | 128GB 8GB RAM, 128GB 12GB RAM, 256GB 12GB RAM, 256GB 16GB RAM, 512GB 16GB RAM, 512GB 18GB RAM |
| UFS 3.1 | UFS 3.1 | |
| Main Camera | ||
|---|---|---|
| Features | Color spectrum sensor, LED flash, HDR, panorama | LED flash, HDR, panorama |
| Single | 20 MP, f/2.5, (wide), 1/3.4", 0.8µm | - |
| Triple | 64 MP, f/1.9, 26mm (wide), 1/1.7", 0.8µm, PDAF 8 MP, f/2.2, 119˚ (ultrawide) 5 MP, f/2.4, 50mm (macro) | 64 MP, f/1.8, 26mm (wide), 1/1.73", 0.8µm, PDAF 13 MP, f/2.4, 11mm, 125˚ (ultrawide) 5 MP (macro) |
| Video | 8K@30fps, 4K@30/60fps, 1080p@30/60/120/240/960fps, gyro-EIS, HDR10+ | 8K@30fps, 4K@30/60/120fps, 1080p@30/60/120/240fps, 720p@480fps; gyro-EIS |
| Selfie camera | ||
|---|---|---|
| Features | HDR | Panorama, HDR |
| Single | 20 MP, f/2.5, (wide), 1/3.4", 0.8µm | 24 MP, f/2.5, 27mm (wide), 0.9µm |
| Video | 1080p@30fps, 720p@120fps | 1080p@30fps |
| Sound | ||
|---|---|---|
| 3.5mm jack | No | Yes |
| 35mm jack | No | Yes |
| Loudspeaker | Yes, with stereo speakers | Yes, with stereo speakers (2 amplifiers) |
| 24-bit/192kHz audio | 24-bit/192kHz audio | |
| Comms | ||
|---|---|---|
| Bluetooth | 5.2, A2DP, LE, aptX HD, aptX Adaptive | 5.2, A2DP, LE, aptX HD, aptX Adaptive |
| Infrared port | Yes | - |
| NFC | Yes | Yes |
| Positioning | GPS (L1+L5), GLONASS (G1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) | GPS (L1+L5), GLONASS (L1), BDS (B1I+B1c+B2a), GALILEO (E1+E5a), QZSS (L1+L5), NavIC (L5) |
| Radio | No | No |
| USB | USB Type-C 2.0, OTG | USB Type-C 3.1 (side), USB Type-C 2.0 (bottom), OTG, accessory connector |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct | Wi-Fi 802.11 a/b/g/n/ac/6e, dual-band, Wi-Fi Direct |
| Features | ||
|---|---|---|
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass, barometer | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Battery | ||
|---|---|---|
| Charging | 33W wired, PD3.0, QC3, 100% in 52 min | 65W wired, PD3.0, QC5, 70% in 30 min, 100% in 52 min 10W reverse wired |
| Type | Li-Po 4520 mAh | Li-Po 6000 mAh |
| Misc | ||
|---|---|---|
| Colors | Black, White, Aurora | Phantom Black, Storm White |
| Models | M2012K11C | ZS676KS |
| Price | About 360 EUR | About 1030 EUR |
Xiaomi Redmi K40 Pro
- Significantly lower price point
- Excellent overall performance for daily tasks
- Potentially more versatile camera system
- Less optimized for sustained gaming performance
- Slower charging speed compared to the ROG Phone 5s
Asus ROG Phone 5s
- Superior gaming performance due to Snapdragon 888+
- Advanced cooling system prevents thermal throttling
- Faster charging and reverse wireless charging
- Higher price tag
- May offer less value for non-gaming users
Display Comparison
While both devices likely feature high-quality AMOLED panels, the context data doesn't provide specifics. However, given Asus's ROG branding, the 5s likely boasts a higher refresh rate (120Hz or 144Hz) compared to the K40 Pro, offering smoother visuals in games. The ROG Phone 5s also likely incorporates a higher touch sampling rate, crucial for responsive gaming. Bezels are expected to be minimal on both, but the ROG Phone 5s' design prioritizes screen real estate for immersive gaming.
Camera Comparison
The provided data doesn't detail camera specifications beyond the chipsets. Given the K40 Pro's positioning, it likely features a more versatile camera system geared towards general photography. The ROG Phone 5s, while capable, likely prioritizes camera functionality less than gaming features. Expect the K40 Pro to offer a wider range of shooting modes and potentially better image processing for everyday photos. Without sensor size or aperture information, a definitive camera comparison is impossible, but the K40 Pro is likely to offer a more balanced photographic experience.
Performance
Both phones utilize the Qualcomm Snapdragon 888 series, but the ROG Phone 5s features the upgraded Snapdragon 888+. The 888+ boasts a slightly higher clock speed (2.99 GHz vs 2.84 GHz on the K40 Pro's Cortex-X1), resulting in a marginal performance increase in CPU-intensive tasks. More importantly, the 888+ benefits from improved thermal management, allowing it to sustain peak performance for longer periods. Both devices utilize LPDDR5 RAM, but the ROG Phone 5s' advanced cooling system is the key differentiator, preventing thermal throttling during extended gaming sessions. This means the ROG Phone 5s will maintain higher frame rates for longer.
Battery Life
The Redmi K40 Pro charges at 33W, reaching 100% in 52 minutes, while the ROG Phone 5s boasts 65W charging, achieving 70% in 30 minutes and 100% in 52 minutes. Although both reach full charge in the same time, the ROG Phone 5s' faster initial charging is beneficial for quick top-ups. The ROG Phone 5s also includes 10W reverse wired charging, a feature absent on the K40 Pro. While battery capacity isn't specified, the ROG Phone 5s likely has a larger battery to support its power-hungry gaming features, offsetting the K40 Pro's potentially more efficient chipset.
Buying Guide
Buy the Xiaomi Redmi K40 Pro if you need a powerful all-rounder with excellent performance for daily tasks, media consumption, and casual gaming, all at a significantly lower price point. Buy the Asus ROG Phone 5s if you prioritize a dedicated gaming experience, demanding sustained peak performance during long gaming sessions, and appreciate features like AirTriggers and a high refresh rate display.